Ep 2. Revenge of the Slitheen, Pt. 2

Under attack from the monstrous Slitheen child, Maria, Luke and Clyde escape, thanks to some deodorant and Sarah Jane's sonic lipstick. Back in her attic, Sarah Jane's super-computer Mr Smith reveals the aliens' evil plan to drain Earth of its energy. But as a power blackout spreads across the globe, Mr Smith goes out of action.